fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module
解决：升级npm
npm info graceful-fs -v
3.3.6
ok, lets upgrade or remove and install new:
npm i graceful-fs@latest npm i [email protected] sudo npm i [email protected] -g
npm update -g npm执行这一句的时候，提示npm更新成功：
参考网址：https://stackoverflow.com/questions/37346512/how-to-fix-fs-re-evaluating-native-module-sources-is-not-supported-graceful